28493355 has 16 divisors (see below), whose sum is σ = 49734144. Its totient is φ = 13814880.

The previous prime is 28493323. The next prime is 28493429. The reversal of 28493355 is 55339482.

It is not a de Polignac number, because 28493355 - 2⁵ = 28493323 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86179 + ... + 86508.

It is an arithmetic number, because the mean of its divisors is an integer number (3108384).

Almost surely, 2^28493355 is an apocalyptic number.

28493355 is a deficient number, since it is larger than the sum of its proper divisors (21240789).

28493355 is a wasteful number, since it uses less digits than its factorization.

28493355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172706.

The product of its digits is 129600, while the sum is 39.

The square root of 28493355 is about 5337.9167284625. The cubic root of 28493355 is about 305.4319955637.

It can be divided in two parts, 284 and 93355, that added together give a palindrome (93639).

The spelling of 28493355 in words is "twenty-eight million, four hundred ninety-three thousand, three hundred fifty-five".